Audio Innovations

イノベーションにより人生経験を豊かに。​ハーマンとその影響力と実績に優れた先進的なテクノロジーは、変化を続けるコネクテッド・ワールドの中核的存在です。

Whitepapers

The Perception and Measurement of Headphone Sound Quality- What Do Listeners Prefer?

Sean E. Olive
​ in Acoustics Today, Spring 2022 | Volume 18, issue 1

Headphones​​ are the primary means through which we listen to music, movies, and other forms of infotainment.

Optimal Configurations for Subwoofers in Rooms Considering Seat to Seat Variation and Low Frequency Efficiency: Color Plots

Todd Welti
Research Acoustician, Harman International Industries, Inc.

These are color versions of grayscale plots which were included as an Appendix in the 133rd Audio Engineering Society Convention Paper 8748, "Optimal Configurations for Subwoofers in Rooms Considering​

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Loudspeakers and Rooms

Dr. Floyd E. Toole
Vice President Acoustical Engineering, Harman International Industries, Inc.

Direction and Space – the Final Frontiers

Dr. Floyd E. Toole
Vice President Acoustical Engineering, Harman International Industries, Inc.​​​

How many channels do we need in order to be able to believe that we are "there," and not sitting in our living rooms ?​

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Audio, Science in the Service of Art

Dr. Floyd E. Toole
Vice President Acoustical Engineering, Harman International Industries, Inc.​​

Music and movies are art. The audio equipment and techniques used in capturing, storing and reproducing this art are developed using scientific principles and engineering methodologies. ​


Subwoofers

Todd Welti
Research Acoustician, Harman International Industries, Inc.​​

Optimum Number and Locations​

Calculators

A Program That Allows You to Model, Plot and Listen to the Effect of Resonances

Todd Welti
Research Acoustician, Harman International Industries, Inc.

Reslab 2 is a program t​hat allows you to play with resonances. This very sophisticated program allows the user to model, plot and listen to the effect of resonances.​

Room Mode Calculator

​Dan Siefert and Allan Devantier
Harman International Industries, Inc.

This is a Microsoft® Excel® program for the PC that calculates the resonance frequencies for rectangular rooms, and which shows graphically the sound pressure dis​tributions along the major axes of the​